Quantum FPGA architecture design

A Quantum FPGA (QFPGA) architecture is presented for programmable quantum computing, which is a hybrid architecture combining the advantages of the measurement-based quantum computation and the qubus system. QFPGA consists of Quantum Logic Blocks (QLBs) and Quantum Routing Channels (QRCs). The QLB is used to realize a small quantum logic while the QRC is to combine them properly for larger logic realization. There are two types of buses in QFPGA, the local bus in the QLB and the global bus in the QRC, which are to generate the cluster states and general multiqubit rotations around the z axis respectively. However for some applications such as Grover's algorithm and n-qubit quantum Fourier transform, one QLB can be configured for four-qubit phase shift module and four-qubit quantum Fourier transform respectively.